Synthesis of a paramagnetic polymer by ring-opening polymerization of a strained [1]vanadoarenophane

被引:31
作者
Braunschweig, Holger [1 ]
Adams, Christopher J. [2 ]
Kupfer, Thomas [1 ]
Manners, Ian [2 ]
Richardson, Robert M. [3 ]
Whittell, George R. [2 ]
机构
[1] Julius Maximilians Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany
[2] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
[3] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England
关键词
ansa complexes; EPR spectroscopy; organometallic polymers; ring-opening polymerization; vanadium;
D O I
10.1002/anie.200800081
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Salt-elimination reactions led to the formation of highly strained [1]bora- and [1]silavanadoarenophanes, which undergo different types of ring-opening reactions with low-valent platinum complexes. Whereas the boron-bridged derivative opened stoichiometrically by cleavage of the V-Carene bond, the [1]silavanadoarenophane reacted at the Si-Cipso bond to afford a polymer containing spinactive metalcenters in the main chain (see scheme). © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:3826 / 3829
页数:4
相关论文
共 66 条
[1]   Synthesis of ansa-[n]silacyclopentadienyl-cycloheptatrienyl-chromium complexes (n=1,2):: Novel precursors for polymers bearing chromium in the backbone [J].
Bartole-Scott, A ;
Braunschweig, H ;
Kupfer, T ;
Lutz, M ;
Manners, I ;
Nguyen, TL ;
Radacki, K ;
Seeler, F .
CHEMISTRY-A EUROPEAN JOURNAL, 2006, 12 (04) :1266-1273
[2]   Nucleophilically assisted and cationic ring-opening polymerization of tin-bridged [1]ferrocenophanes [J].
Baumgartner, T ;
Jäkle, F ;
Rulkens, R ;
Zech, G ;
Lough, AJ ;
Manners, I .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (34) :10062-10070
[3]  
Bellas V., 2007, ANGEW CHEM, V119, P5174
[4]   Polyferrocenylsilane-based polymer systems [J].
Bellas, Vasilios ;
Rehahn, Matthias .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (27) :5082-5104
[5]   Synthesis, electronic structure, and novel reactivity of strained, boron-bridged [1]ferrocenophanes [J].
Berenbaum, A ;
Braunschweig, H ;
Dirk, R ;
Englert, U ;
Green, JC ;
Jäkle, F ;
Lough, AJ ;
Manners, I .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (24) :5765-5774
[6]   Transition metal-catalyzed ring-opening polymerization (ROP) of strained, silicon-bridged bis(benzene)chromium complexes [J].
Berenbaum, A ;
Manners, I .
DALTON TRANSACTIONS, 2004, (14) :2057-2058
[7]   Synthesis of ansa-[2]boracyclopentadienylcycloheptatrienylchromium and its reaction to the ansa-platinabis(boryl) complex by oxidative addition of the boron-boron bond [J].
Braunschweig, H ;
Lutz, M ;
Radacki, K .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (35) :5647-5651
[8]   Synthesis and structure of [Cr{(η6-C6H5)2B{NtBu(SiMe3)}}] and [Cr{ (η6-C6H5)2(BNMe2)2}], the first boron-bridged metalloarenophanes [J].
Braunschweig, H ;
Homberger, M ;
Hu, CH ;
Zheng, XL ;
Gullo, E ;
Clentsmith, G ;
Lutz, M .
ORGANOMETALLICS, 2004, 23 (09) :1968-1970
[9]  
Braunschweig H., 2006, ANGEW CHEM, V118, P8217
[10]  
BRAUNSCHWEIG H, 2005, ANGEW CHEM, V117, P5792